It seems to me that it is optimal to start investing with 3000 thousand dollars. But I started with $ 200))
The amount of money in this market is not so important but it is important that you have enough knowledge to be successful in this market or not. Many people have been very successful in this market with very small investments. I also advise new investors to enter this market should not invest too much at the beginning because you need a lot of experience to be able to succeed in this financial market.
Investing huge amount of money is not the most important thing but understanding the falling and rising of the market is very important. So gathering experience gradually with small amount is supported and advised. $200 is a good start if invested in a worthy coin will grow rapidly.
Yes, Because spending a huge money will be useless if the people who drop it doesn't have any knowledge on the effect if he place his money in certain platforms or in his trades. And totally agree with you that all starts with small so that huge lose will not occur and easily to recover if people will gain experience from that small mistakes.